Preheat oven to 350 F.,,______,,Heat stock in preparation of making the sauce.,,Deglaze the pan with 1/4 C of white wine, reduce to 2 T and reserve. Add oil and 1/2 T of butter, saute the shallot just to translucent, add the chantrelles and saute to tender. Add the reduced wine, any pan drippings and 1 T of veal demiglace, whisk bring to a boil. Add stock, and reduce to proper flavor, correct seasoning. Add remaining butter and whisk in Wondra to correct viscosity.,,Slice veal, pour sauce over, and serve.